Data as of Nov 9, 2026
163.253.36.0/22
No anonymizer space · no proxy exits in 30 daysMerit Network Inc. · space held by Internet2
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 163.253.0.0/16 | 65,536 | INTERNET2 | Internet2 (INTER-395) · US | Direct Allocation | Oct 21, 1992 | abuse@ |
| └ 163.253.36.0/22 | 1,024 | INTERNET2-TSG-ANNARBOR | Internet2 TSG (C06866340) · US | Reassigned | Jan 3, 2018 | abuse@ via INTERNET2 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Internet2
- Handle
- INTER-395
- Range
- 163.
253. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Oct 21, 1992
- Legacy
- yes
Origin network
AS237
US
- Name
- Merit Network Inc.
- Type
- Education
- Registered
- Sep 12, 1988
- Domain
- merit.edu
- Website
- www.merit.edu
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2017
- Current origin since
- Jun 2017 · 9.4 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 163.253.36.0/22 | AS237 | /22 | ARIN | RPKI valid |
| 163.253.0.0/16 | AS11537 | /16 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS237 | RADB | Internet2 TSG Ann Arbor | MAINT-AS11537 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 163.
253. 36. 0/ 22 - Netname
- INTERNET2-TSG-ANNARBOR
- Registrant
- Internet2 TSG
- Organization
- Internet2 TSG (C06866340)
- Type
- Reassigned
- Handle
- NET-163-253-36-0-1
- Parent
- NET-163-253-0-0-1
- Created
- Jan 3, 2018
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 21, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
net. internet2. edu - Name
- Abuse
- Phone
- +1-317-278-6622
- Handle
- ABUSE8538-ARIN